Accessing nested variables with Logstash
For some reason this doesn't seem to be anywhere on the internet. Anyhu, the correct way to access this is: Assuming the input: { "foo" »
Validating a Spring MVC @Controller with a custom validation class - the easy way
For some reason this is terribly documented on the web .. so, I hope this helps someone. Assuming we have the following model: public class PersonForm { @NotNull »